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net/mlx5: Revise gre and nvgre key formats

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GRE RFC defines a 32 bit key field. NVGRE RFC splits the 32 bit
key field to 24 bit VSID (gre_key_h) and 8 bit flow entropy (gre_key_l).

Define the two key parsing alternatives in a union, thus enabling both
access methods.

Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Oz Shlomo
2018-12-10 13:15:13 -08:00
committed by Saeed Mahameed
parent fd4572b3ff
commit 5886a96ad1
3 changed files with 17 additions and 8 deletions
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13
include/linux/mlx5/mlx5_ifc.h
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@@ -423,6 +423,16 @@ struct mlx5_ifc_fte_match_set_lyr_2_4_bits {
union mlx5_ifc_ipv6_layout_ipv4_layout_auto_bits dst_ipv4_dst_ipv6;
};
struct mlx5_ifc_nvgre_key_bits {
u8 hi[0x18];
u8 lo[0x8];
};
union mlx5_ifc_gre_key_bits {
struct mlx5_ifc_nvgre_key_bits nvgre;
u8 key[0x20];
};
struct mlx5_ifc_fte_match_set_misc_bits {
u8 reserved_at_0[0x8];
u8 source_sqn[0x18];
@@ -444,8 +454,7 @@ struct mlx5_ifc_fte_match_set_misc_bits {
u8 reserved_at_64[0xc];
u8 gre_protocol[0x10];
u8 gre_key_h[0x18];
u8 gre_key_l[0x8];
union mlx5_ifc_gre_key_bits gre_key;
u8 vxlan_vni[0x18];
u8 reserved_at_b8[0x8];